Stator and pneumatic tube: what they have in common

1. Step 1. Stator — is part of — Electric generator. The stationary part with the windings.
2. Step 2. Electric generator — is part of — Diesel locomotive. The generator powers the traction motors.
3. Step 3. Diesel locomotive — has part — Air brake. Air brakes.
4. Step 4. Air brake — uses — Compressed air. The brake is controlled by air pressure in the train pipe.
5. Step 5. Compressed air — is used in — Pneumatic tube. Air pressure.

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